EP0692614A1 - Drehventil mit Umlenkplatte zur Verbesserung der Spülung in Zweitakt-Brennkraftmaschinen - Google Patents
Drehventil mit Umlenkplatte zur Verbesserung der Spülung in Zweitakt-Brennkraftmaschinen Download PDFInfo
- Publication number
- EP0692614A1 EP0692614A1 EP95400234A EP95400234A EP0692614A1 EP 0692614 A1 EP0692614 A1 EP 0692614A1 EP 95400234 A EP95400234 A EP 95400234A EP 95400234 A EP95400234 A EP 95400234A EP 0692614 A1 EP0692614 A1 EP 0692614A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- scavenging
- shroud
- supporter
- valve
- stroke engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/06—Valve members or valve-seats with means for guiding or deflecting the medium controlled thereby, e.g. producing a rotary motion of the drawn-in cylinder charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/48—Tumble motion in gas movement in cylinder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to a scavenging shroud mechanism for improving a scavenging of 2-stroke engine, and more particularly to a scavenging shroud mechanism for improving a scavenging of 2-stroke engine in which a scavenging shroud mechanism is provided to a scavenging valve whereby a compressed air sucked into interior of combustion chamber makes a tumble phenomenon along with cylinder wall surface and thereby pushing out already burned burnt gas and simultaneously being capable of efficiently feeding a new air so that efficient reverse loop scavenging system is made.
- a conventional scavenging valve has a structure in which simple valve body is to be opened and closed to a valve seat, a new air could not be efficiently fed by pushing out a burnt gas within already burned combustion chamber by a compressed air fed through an intake manifold in a short intake and scavenging time period which is a technique to be most kernel in 2-stroke engine.
- the present invention is that, in order to eliminate such conventional disadvantage as that, which is added with a scavenging shroud mechanism to a scavenging valve.
- the invention includes a scavenging shroud mechanism 1 constructed by a baffle 2, shroud supporter 3 and a shroud neck 4, and a supporting pin 6 provided not to be slid to up and down-ward direction with a scavenging valve 7,and a supporting groove 5 provided to inner side of intake manifold 9 by making a shroud supporter 3 to the baffle 2 so as to be inserted to said shroud supporter 3 so that the scavenging shroud mechanism 1 can do a up and down-ward movement but can not do a right and left rotational movement.
- a scavenging shroud mechanism 1 As shown in FIG.1, a scavenging shroud mechanism 1, a baffle 2, a shroud supporter 3 and a shroud neck 4 are included, and as shown in an assembled view of FIG.2, the scavenging shroud mechanism 1 is provided to a scavenging valve 7 through the shroud neck 4.
- the scavenging valve 7 does a up and down-ward movement and a right and left rotating movement
- the scavenging shroud mechanism 1 provided to the scavenging valve 7 is made to integral together with the scavenging valve 7 whereby doing a up and down-ward movement but does not a rotating movement toward right and left direction and has to keep a predetermined position.
- a supporting pin 6 is provided such that the scavenging shroud mechanism 1 is not slid to up and down-ward direction with the scavenging valve 7, and a shroud supporter 3 is made to the baffle 2 of the scavenging shroud mechanism 1 so that the supporting groove 5 provided to inner side of the intake manifold 9 is inserted to this shroud supporter 3 whereby the scavenging shroud mechanism 1 can do a up and down-ward movement but it can not do a right and left rotating movement.
- the technique becoming a most kernel in 2-stroke engine is a scavenging technique for pushing out a burnt gas within already burned combustion chamber by a compressed air fed through the intake manifold 9 in a short intake and scavenging time period and efficiently feeding a new air; and when viewing a function of scavenging shroud mechanism 1 of the present invention, as shown in FIG.3, when the scavenging valve 7 is closed, the compressed air of the intake manifold 9 can not be fed to the engine's combustion chamber 8, but as shown in FIG.4, when the scavenging valve 7 is opened, the compressed air is sucked to a portion having no scavenging shroud mechanism 1 (right side of the scavenging valve of FIG.4), but since the baffle 2 of the scavenging shroud mechanism 1 continuously shut the intake manifold 9, the compressed air can not be sucked to this portion (left side of the scavenging valve of FIG.4); the compressed air
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR9416912 | 1994-07-14 | ||
KR1019940016912A KR970000751B1 (ko) | 1994-07-14 | 1994-07-14 | 2-행정엔진 소기향상을 위한 소기조절기구 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0692614A1 true EP0692614A1 (de) | 1996-01-17 |
Family
ID=19387932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95400234A Withdrawn EP0692614A1 (de) | 1994-07-14 | 1995-02-03 | Drehventil mit Umlenkplatte zur Verbesserung der Spülung in Zweitakt-Brennkraftmaschinen |
Country Status (4)
Country | Link |
---|---|
US (1) | US5529036A (de) |
EP (1) | EP0692614A1 (de) |
JP (1) | JP2777078B2 (de) |
KR (1) | KR970000751B1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2920820A1 (fr) * | 2007-09-12 | 2009-03-13 | Peugeot Citroen Automobiles Sa | Soupape a masque integre |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4556771B2 (ja) * | 2005-05-27 | 2010-10-06 | 三菱自動車工業株式会社 | エンジンの燃焼室構造 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE490094C (de) * | 1921-08-31 | 1930-01-24 | Knut Jonas Elias Hesselman | Dieselmaschine mit kreisendem Luftstrom |
GB773651A (en) * | 1954-11-04 | 1957-05-01 | Maschf Augsburg Nuernberg Ag | Improvements in and relating to poppet valves |
DE4012500A1 (de) * | 1989-04-26 | 1990-10-31 | Volkswagen Ag | Brennkraftmaschine, insb. zweitaktmaschine, mit brennraumspuelung durch frischgaszufuhr |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2768617A (en) * | 1952-10-16 | 1956-10-30 | Texas Co | Air induction system for air swirl internal combustion engines |
FR2123710A5 (de) * | 1971-01-28 | 1972-09-15 | Semt | |
JPS5181806A (en) * | 1975-01-14 | 1976-07-17 | Nippon Chemical Ind | Kenma taimamoseizairyo oyobi sonoseizohoho |
JPS5455216A (en) * | 1977-10-07 | 1979-05-02 | Mitsui Eng & Shipbuild Co Ltd | Device for causing swirl in combustion chamber of internal combustion engine |
JPS5617305U (de) * | 1979-07-18 | 1981-02-16 | ||
US4320725A (en) * | 1980-02-25 | 1982-03-23 | Rychlik Frank J | Puffing swirler |
US4309969A (en) * | 1980-03-17 | 1982-01-12 | General Motors Corporation | Induction system with high-swirl intake valve |
US4355604A (en) * | 1980-05-27 | 1982-10-26 | Sampao Chaibongsai | Shrouded valve for internal combustion engine |
US4389988A (en) * | 1981-04-06 | 1983-06-28 | Ong Siak H | Intake port for an internal combustion engine |
JPS6035531A (ja) * | 1983-08-06 | 1985-02-23 | Oki Electric Ind Co Ltd | 半導体チップの製作方法 |
US4539954A (en) * | 1984-10-29 | 1985-09-10 | General Motors Corporation | Selective asymmetric swirl intake port |
US4744340A (en) * | 1985-07-17 | 1988-05-17 | Kirby Ronald A | Vortex generator intake valve and system of using the same |
JPH0722032B2 (ja) * | 1988-12-15 | 1995-03-08 | 日本電気エンジニアリング株式会社 | 切替装置 |
US5255649A (en) * | 1991-02-21 | 1993-10-26 | Yamaha Hatsudoki Kabushiki Kaisha | Intake air control system for the engine |
JP2594971Y2 (ja) * | 1993-09-28 | 1999-05-24 | 富士重工業株式会社 | エンジンの吸気装置 |
-
1994
- 1994-07-14 KR KR1019940016912A patent/KR970000751B1/ko not_active IP Right Cessation
-
1995
- 1995-02-01 JP JP7015329A patent/JP2777078B2/ja not_active Expired - Lifetime
- 1995-02-03 US US08/383,374 patent/US5529036A/en not_active Expired - Fee Related
- 1995-02-03 EP EP95400234A patent/EP0692614A1/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE490094C (de) * | 1921-08-31 | 1930-01-24 | Knut Jonas Elias Hesselman | Dieselmaschine mit kreisendem Luftstrom |
GB773651A (en) * | 1954-11-04 | 1957-05-01 | Maschf Augsburg Nuernberg Ag | Improvements in and relating to poppet valves |
DE4012500A1 (de) * | 1989-04-26 | 1990-10-31 | Volkswagen Ag | Brennkraftmaschine, insb. zweitaktmaschine, mit brennraumspuelung durch frischgaszufuhr |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2920820A1 (fr) * | 2007-09-12 | 2009-03-13 | Peugeot Citroen Automobiles Sa | Soupape a masque integre |
Also Published As
Publication number | Publication date |
---|---|
JP2777078B2 (ja) | 1998-07-16 |
US5529036A (en) | 1996-06-25 |
KR970000751B1 (ko) | 1997-01-18 |
JPH0828221A (ja) | 1996-01-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
17P | Request for examination filed |
Effective date: 19960209 |
|
17Q | First examination report despatched |
Effective date: 19960611 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19961223 |